<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 面包屑导航区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit"  size="mini"
             @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete"  size="mini" 
            @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark"  content="分配角色"  placement="top"  :enterable="false" >
              <el-button type="warning" icon="el-icon-setting"  size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

     <!-- 添加用户对话框区域 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%"
    @close="addDialogClosed">
      <!-- 内容主体区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
         <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
         </el-form-item>
         <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
         </el-form-item>
         <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
         </el-form-item>
         <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
         </el-form-item>
      </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
     </el-dialog>
     
     <!-- 修改用户的对话框 -->
     <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%"
     @close="editDialogClosed">
       <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px"
        >   <!-- rulis:是验证规则 ref:表单的引用 -->
         <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
         </el-form-item>
         <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
         </el-form-item>
         <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
         </el-form-item>
       </el-form>
       <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
       </span>
     </el-dialog>


     <!-- 分配角色的对话框 -->
     <el-dialog
  title="分配角色"
  :visible.sync="setRoIeDialogVisible"
  width="50%" @close="setRoleDialogClosed">
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoIeDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="savaRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    const checkEmail = (rule, value,cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*@[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*\.[a-z]{2,}$/

      if(regEmail.test(value)) {
        // 合法邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    const checkMobil = (rule, value,cb) => {
      const regMobile = /^(13[0-9]|14[01456879]|15[0-3,5-9]|16[2567]|17[0-8]|18[0-9]|19[0-3,5-9])\d{8}$/

      if(regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        //  当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加对话框的显示和隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm:{ 
        username:'',
        password:'',
        email:'',
        mobile:'' },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true,message: '请输入用户名',trigger: 'blur' },{ min:3, max: 10,
          message: '用户名的长度在3~10个字符之间',trigger: 'blur' }
        ],
        password: [
          { required: true,message: '请输入用户密码',trigger: 'blur' },{ min:6, max: 15,
          message: '用户密码的长度在6~15个字符之间',trigger: 'blur' }
        ],
        email: [
          { required: true,message: '请输入用户邮箱',trigger: 'blur' },{ validator: checkEmail
          , trigger:'blur' }
        ],
        mobile: [
          { required: true,message: '请输入用户手机号',trigger: 'blur' },{ validator: checkMobil
          , trigger:'blur' }
        ]
      },
      // 控制修改用户对话框的显示和隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则的对象
      editFormRules: {
        email: [
          { required: true,message: '请输入用户邮箱',trigger: 'blur' },{
            validator: checkEmail, trigger: 'blur'
          }
        ],mobile:[
           { required: true,message: '请输入用户手机号',trigger: 'blur' },{
            validator: checkMobil, trigger: 'blur'
          }
        ]
      },
      // 控制分配角色对话框的显示和隐藏
       setRoIeDialogVisible:false,
       // 需要被分配角色的用户信息
       userInfo:{},
       // 所有角色的数据列表
       rolesList:[],
       // 已选中的角色Id值
       selectedRoleId:''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.console.error("获取用户列表失败！")
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res);
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
       // console.log(newSize)
        this.queryInfo.pagesize = newSize
        this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage){
        console.log(newPage)
        this.queryInfo.pagenum = newPage
        this.getUserList()
    },
    // 监听 swith 开挂状态的改变
    async userStateChange(userinfo) {
        console.log(userinfo)
        const { data: res } =  await this.$http.put(
            `users/${userinfo.id}/state/${userinfo.mg_state}`
            )
        if(res.meta.status !== 200) {
            userinfo.mg_state = !userinfo.mg_state
            return this.$message.error('更新用户信息失败！')
        }
        this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 如果在上面没有被return出去，可以发起添加用户的网络请求
       const {data: res} = await this.$http.post('users',this.addForm)

       if(res.meta.status !== 201) {
         this.$message.error('添加用过户失败！')
       }
       this.$message.success('添加用户成功！')
       // 隐藏添加用户的对话框
       thi.addDialogVisible = false
       // 重新获取用户的列表数据
       this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      const {data: res} = await this.$http.get('users/'+ id)
      //console.log(res)
       if (res.meta.status !== 200) {
         return this.$message.error('查询用户信息失败！')
       }

      this.editForm = res.data
      this.editDialogVisible = true
    },
    //  监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid=> {if(!valid) return
      // 发起修改用户信息的数据请求
      const {data:res} = await this.$http.put('users/'+ this.editForm.id,{ email:this.editForm.email, mobile:
      this.editForm.mobile })

      if(res.meta.status !== 200){
        return this.$message.error('更新用户信息失败！')
      }

      // 关闭对话框
      this.editDialogVisible = false
      // 刷新数据列表
      this.getUserList()
      // 提示修改成功
      this.$message.success('更新用户信息成功！')
      })
    },

    //  根据用户的id 删除对应的用户信息
    async removeUserById(id){
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        // 如果用户确定删除，则返回值为字符串 confirm
        // 如果用户取消了删除，则返回值为字符串 cancel
        if(confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const {data: res} = await this.$http.delete('users/' + id)

        if(res.meta.status !== 200) {
          return this.$message.error('删除用户失败！')
        }

        this.$message.success('删除用户成功！')
        this.getUserList() // 刷新列表
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo 

      // 在展示对话框之前，获取所有角色的列表
      const {data: res} = await this.$http.get('roles')
      if(res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      // this.$message.success('获取角色列表成功！')

      this.setRoIeDialogVisible = true
    },
    // 点击按钮，分配角色
    async savaRoleInfo() {
      if(!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }

      const {data: res} = await this.$http.put(`users/${this. userInfo.id}/role`,{rid: this.selectedRoleId})

      if(res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoIeDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = []
    }
  }
}
</script>

<style lang="less" scoped>
</style>